In Unfinished Business he 'steals' it

In Unfinished Business he plays an anti-hero dweeb but through sheer talent and ability steals it from Vince Vaughan and Tom Wilinson(who's a brilliant actor). He's both lovable, sincere and heroic.
Comparing someone to another actor in a different role is like comparing apples and oranges. In this role he beats his brother hands down, don't know his brother as well as everyone else but he hasn't made an impression on me as much as Dave Franco in Unfinished Business